code: def accumulate(self, learn: fastai.Learner):
      self.metric.accumulate(preds=learn.converted_preds)
  
file_path: icevision/icevision/engines/fastai/adapters/fastai_metric_adapter.py
imports: from icevision.imports import *
  from icevision.metrics import Metric
  from icevision.engines.fastai.imports import *
label_desc: Use image node_id 3 for calling the FastaiMetricAdapter obj's underlying member method code with example usage: obj.accumulate(learn) without return types